Patents by Inventor W. Paul Cullen

W. Paul Cullen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5779609
    Abstract: An apparatus for transporting a plurality of fasteners in an automated changing system, i.e., in a robotic tool changing system, wherein the system includes a tooling adaptor assembly adapted to be coupled and decoupled to and from a robot adaptor assembly. The transport apparatus includes a first member which has a first passage formed therethrough and a second member which has a second passage formed therethrough. Both the first and second members are mutually adapted for alignment to one another when the adaptor assemblies are coupled. When the adaptor assemblies are coupled together, the first and second members form an interface fitting so that the plurality of fasteners, i.e., studs, may pass therethrough, and ultimately be transported to a tool, i.e., a stud welding gun.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: July 14, 1998
    Assignee: Applied Robotics, Inc.
    Inventors: W. Paul Cullen, Pamela B. Billings, Douglas N. Gallup
  • Patent number: 5648617
    Abstract: A single axis force sensor assembly for sensing compressive and tensile forces along a first axis includes a first member having a center hub and a plurality of arms extending radially outward therefrom. Each of the plurality of arms terminate at a peripheral flange of the first member. Strain sensing gauges are mounted to at least one of the plurality of arms so as to detect mechanical deformation of the arm or arms to which the gauges are attached. A second member is joined to the center hub such that the first and second members are oriented generally parallel to one another. A gap extends between the first member and the second member. A circuit carrying substrate may be physically incorporated as a part of the force sensor assembly, i.e., above and adjacent to the plurality of arms. A circuit of the circuit carrying substrate is electrically connected to the strain sensing gauges.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: July 15, 1997
    Assignee: Applied Robotics, Inc.
    Inventors: W. Paul Cullen, Pamela B. Billings, John E. Ramming
  • Patent number: 5460536
    Abstract: A high power electrical interface unit for a robotic tool changing system has a housing, a high power electrical connector in the housing for attachment to a high power electrical cable, and a replaceable high power electrical contact removably attachable to the electrical connector. The electrical contact extends into an opening in the housing and may be replaced through the opening without other disassembly of the interface unit. The contact may be threadably attachable to the connector, and the interface unit may include a member for preventing the electrical connector from rotating when the contact is threaded to the connector. The contact may include a head portion having a spheroidal or spherical contact surface, and a side surface configured for ready engagement by a hand tool such as a socket wrench. The interface unit may be removably secured to either a robot or tooling adaptor, or the interface unit may be integral to the robot or tool adaptor.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: October 24, 1995
    Assignee: Applied Robotics, Inc.
    Inventor: W. Paul Cullen
  • Patent number: 5454775
    Abstract: An automated exchangeable parts feeding system which permits rapid exchange of parts presentation devices so that different size and shape parts can be handled on the parts feeding system. The automated exchangeable parts feeding system includes a parts presentation device having a tool exchange unit attached thereto, and a base exchange unit. The exchange units are mutually adapted to be coupled and decoupled to and from one another. At least one of the exchange units is controllably operable for coupling and decoupling. A robot arm or a pick and place device grasps and places the presentation device on the base exchange unit. The robot arm or pick and place device also functions to grasp and remove the presentation device from the base exchange unit. A control source coordinates the operation of at least one of the exchange units and the robot or pick and place device. The automated exchangeable parts feeding system further includes an optical detector, e.g.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: October 3, 1995
    Assignees: Applied Robotics, Inc., Robotic Production Methods, Inc.
    Inventors: W. Paul Cullen, Thomas J. Petronis, Clifford C. Annis, E. M. Ross
  • Patent number: 5417595
    Abstract: Pin-and-socket signal cable connectors of the type exemplified by D-SUB series connectors can be quickly mated and unmated many thousands of times without damage to their terminals and without misalignment errors, by so forming the terminals of one or both of the connectors of a connector pair that they can move with respect to their connector body against a spring bias, and that the pins and sockets mate in abutting relationship rather than in frictional engagement. Modified connectors and adapters for standard connectors are disclosed.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: May 23, 1995
    Assignee: Applied Robotics, Inc.
    Inventors: W. Paul Cullen, Pamela B. Wintermute